Cooling and air-circulating means for printing-press inking-rolls.



J. F. HROUSEKL COOLING AND AIR CIRGULATING MEANS FOR PRINTING P'RESS INKING 'ROLLS.

APPLlCATlON FILED AUG. 10, 1914. r

. Patented Apr. 6, 1915 lnuzule ants! in. t

FKQET.

JOSEPH F. zrmoesex, or CLEVELAND, OHIO, assrenon or ONE-HALE re 13. r. Conner,

. or onsvntann, OHIO.

GOOLING AND AIR-CIRCULfiTING MEANS FOR PRINTING-PRESS.INKING-ROLLSL Application and August 10, 191i. Serial No. 855,996.

To all @072 am, it may concern Be it known that, I, Josnrn: F. JIRoUsEK, a citizen of the United States of America, residing at Cleveland, in the county of Guyahoga and State of Ohio, have invented certain new and useful Improvements in Cooling and Air-Circulating Means for Printing-Press Inking-Rolls, of which the following is a specification. i

It is well known in the printers art, that r in order to properly ink .the type or form in the chase, it is necessary to provide one or more rolls which are made of a soft substance or composition, which rolls travel back and-forth and rotate with great rapidity; movement being imparted to the rolls by What are commonly called vibrator rolls which latter contact with the peripheries of the composition rolls'and impart movement to the same by friction. The rolls are bunched or arranged in close proximity to' each other, with the result that a series of nesting recesses-or pockets are formed between the rolls, which recesses or pockets contain humidor dead air;

The rapid rotation of the rollswhen the press is run at high speed, causes heating of the rolls to a high temperature, especially in warm Weather, and when heated the rollsbecome soft and melt, often running down and ever and covering the type form, in additicn to the fact-that the rolls are rendered tet'ally unfit for further use, w

The use of stiff and tacky ink as is used on rough and cover p'apers increases the tendency of heating these rolls as the'p'ull' and friction afieot the co position more readily than soft, thin ink. e melting of the composition rolls further caused by the fact that air can not' circulate around the entireperipheries of the'rolls and thus drive out/ the dead air in the nesting recesses and pockets'afore mentioned, This dead or humid air causes the rollers to practically work in an atmos phere that has no life or resisting powers to, heat, thereby causing the rollersto become. soft and mushy and when rollers are 1 in, this condition same will not print satis:

:iactorynor with an equal brilliancy or color, but cause the ink to look gray, broken and uneven forming a filled pp and greasy cast.

. Elicia t biggest detrim nt is a prin g i'i ilen m the s mer or w re? @8 at the re ra e pen e o a keen r llers. s a hlg'item under these. whditionhi'. w

Specification of Letters Eatent.

Patented A r. a, this;

T he primary object of the present invention is therefore to provide means of direct ing air currents along and around the e ripheries of the composition rolls so that he cially where the latter occur between the bed, rollers and inking plate. The present device not only keeps the rolls in their original condition but cools the rolls to acertain extent, and also, circulates the air.

completely around the peripheries of the rolls so as to keep cool fresh air in close proximity to the rolls at all times tl1rough-' out the operation of the latter.

A further object is to provide means for transmitting movement to the cooling and air circulating apparatus from the printing press and to provide for adjusting the power transmitting means-with respect to the press. These above and other objects are at;

tained by the mechanism illustrated in the accompanying drawings, in which:

Figure 1 is a side elevation showing the application of the cooling mechanism to the composition rolls: Fig. 2 is a section taken on the line c-c of Fig. 1; Fig. 3 is a, top

plan view of the supporting bracket, partly at in section, showing the friction drive wheel mounted thereon;- and Fig. 4, is a section, on

the line A--A' of :Fig. 1,

In the drawings, the master gear wheel of an ordinafy'cylinder press is designated 1, and 2 the conventional guard, partly broken, away which incloses the master gear wheel which imparts movement to the cylinder of the press. A bracket 3 has a hooked portion 4 which engages the guard 2 on one side and further has an L-shaped part '5 that earn taots with the side 6 qt the guard. A set screw 7 threadedly engages through an aperture formed in the L-shaped end 5 and bears upon thejide-(i of the guard so as to thereby securely fasten the bracket to the guard. From the foregoing it will be observed that the bracket can'be adjusted up or down I upon the guard and when placed inthe del sired position a lock nut 8-prov ded on. the

set screw 7 is tightened toprevent the' fset screw from working loose.

An arm 9 provided with slots i0 is justably secured to the bracket 3 by halts '11, the end. 12 off the arm projecting beyond; the hooked mle of th bracket d t r fl "edain. Figs; 1 and 3. A stub shat't' l3 UD justing the fan whereby the relative distance between the fan and element may be adjusted so as to allow regulation of the tension on the belt connection and of the sweep of the fan to bring the latter below the bottom roll to any desired extent.

6. In combination with the inking rolls of a printing press, a pair of spaced independent brackets adjustably secured to the press, driving means on one of the brackets engageable with a movin part of the press to be rotated thereby, a an arranged in close proximity to the inking rolls on the other bracket, and a belt connection between the fan and the driving means.

7. In combination with the inking rolls of a printing press, a bracket connected to a. stationary part of the press, a driving disk frictionally engaged witha rotary part of the press, means adjustably connecting the bracket and disk whereby to allow the disk to be regulated in its engagement with the rotating-part of the press, a fan, and means to drive the fan from the disk.

8. In combination with the inking rolls of a printing press, a bracket connected to a stationary part of the press, a driving disk frictionally engaged with a rotating part of the press, an arm rotatably supporting said driving disk, a pulley rotatable with the disk, means to adjustably connect the arm to the fan and the pulley.

In testimony whereof I aiiix my signature in presence of two witnesses.

1 JOSEPH F. JIROUSEK. Witnessei A. J. SCHENKELBERG,

SARAH E. J ONES. 

